KILL-SWITCH UPDATE: Five years later, unreliable technology might still leave sober drivers stuck.

Almost five years ago, Congress mandated that the federal government create technology capable of disabling a vehicle if it detects that the driver is impaired. However, the National Highway Traffic Safety Administration (NHTSA), the agency tasked with establishing how this technology should operate, has yet to finalize any regulations or even propose any. NHTSA acknowledged […]